Re: minor issue with highlighting URLs in plain text emal

Hello all,

On 2018.07.03 15:27, Peter Bloomfield wrote:
> On 07/03/2018 01:52:12 PM Tue, Albrecht Dreß wrote:
>> Am 03.07.18 19:25 schrieb(en) Jack via balsa-list:
>>> I recently received an email with the text
>>> 
>>> Thank you for contacting the office of Congressman Joe Courtney.  
>>> Due to large amounts of spam and fraudulent emails this account is  
>>> not monitored. To ensure messages receive the Congressman's  
>>> attention we ask that you share your thoughts through his website  
>>> at https://courtney.house.gov/contact/email. Thank you.
>>> 
>>> and Balsa nicely turned the URL into a link.  Unfortunately, it  
>>> included the ending period in the URL, which led to a 404 not found  
>>> error, which I originally blamed on the sender, before realizing  
>>> that it couldn't be their fault, since there is no markup in the  
>>> plain text.
>> 
>> I must admit that I also stumbled into this issue from time to time,  
>> but never cared.  I'll look into that, should be easy to fix.
> 
> Me too! It seems to be a valid URI *with* the period, and some  
> examples have been seen in the wild. For example  
> <URL:https://stackoverflow.com/questions/12092010/is-it-possible-to-create-a-uri-that-ends-with-a-period>,  
> where software that silently *drops* the trailing period was causing  
> problems. Balsa uses gtk_show_uri_on_window(), which gives an error  
> on 'failure' that Balsa reports to the user. I've never seen such a  
> report, so apparently a 404 is not a 'failure'.
I note that URI does NOT actually end in a period :-)
It could be a valid URI with or without the period.  The question is  
which do you present to the user if the URI is not quoted in any way in  
the source, and the trailing period might be part of the URI or just  
ending punctuation?  If it's in quotes or angle brackets, I certainly  
would NOT drop the period.  However, if it's white space before the  
HTTP or HTTPS then I'd expect white space at the end, with the  
exception that I'd take any trailing punctuation mark as such, and not  
part of the URI itself.  Too bad you can't give the user the choice -  
but it would confuse far more folks than it would help.
> 
>>> Interestingly, there was also no markup of the link in the HTML  
>>> version, so that version did not show a link, but I'll blame that  
>>> on whichever library I am currently using for Balsa to display the  
>>> HTML.
>> 
>> I guess the HTML renderer will show a clickable link if and only if  
>> it is a “<a href="…">…</a>” HTML element.  Did you check that in the  
>> html source?
That HTML had no markup whatsoever.  It was exactly the same content as  
the plain text version.  Unfortunately, the folks who sent it are  
totally clueless, so there's no point in my trying to make them change  
it in any way.

>> 
>> Cheers,
>> Albrecht.
I'll try your patch and let you know.
> 
> It seems to me that I've seen an HTML renderer that would 'linkify' a  
> URI, but webkit doesn't seem to.
> 
> Best,
> 
> Peter

Jack
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